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Technical Paper

Safety Testing and Evaluation of Polycarbonate Vehicle Glazing Using Full Scale Crash Testing Procedures

1998-09-29
982352
This paper presents the results of a comprehensive research program addressing the safety issues pertaining to using Polycarbonate glazing for non-windshield vehicle glazing. A series of crash test procedures were used to evaluate the Polycarbonate glazing alternative. The test procedures utilized included High Speed Lateral Impact (HSLI), Narrow Object Intrusion or Pole Impact, Dynamic Rollover, and Inverted Vehicle Drop tests. It should be noted that component-level dynamic impact testing of a variety of Polycarbonate designs was previously conducted as part of this ongoing research program [1]. This testing included 40 lb guided headform and Free Motion Headform (FMH) testing. In regard to vehicle glazing, there are a number of important occupant safety issues. These include occupant containment, injury due to occupant impact with glazing, and laceration. Throughout the project, emphasis was placed on the careful monitoring of the test results with regard to these three issues.
Technical Paper

Evaluation Methodologies for Automobile Side Impact Development

1993-03-01
930483
A comprehensive strategy for applying quasi-static and dynamic tests in the development of automobile side impact protection systems is presented. The approach is geared towards providing an understanding of how vehicle components relate to occupant protection as measured by the FMVSS 214 dynamic side impact test. These test methods are viewed as being complimentary, rather than competitive, tools to be employed in the overall strategy. The approach begins with obtaining detailed data from an FMVSS 214 dynamic test. Additional instrumentation is required so that the results of the test can be used to form the basis for setting conditions for subsequent quasi-static and dynamic tests. The Composite Test Procedure (CTP) is an integral part of the process. As described here, the CTP can be conducted under three different methods; three step procedure, continuous computer control, and continuous manual control.
Technical Paper

Headform Impact Testing of Plastic Glazing Materials

1993-03-01
930741
The primary objective of this study was to compare the safety performance of two different plastic glazing materials to that of tempered glass in a moveable window application. A headform impact test method was used to determine if the use of plastic glazing materials offers the potential to reduce the risk of head injuries and fatalities inside impact collisions. These tests were conducted to simulate the dummy head velocity as it penetrates the side glazing area during Federal Motor Vehicle Safety Standard (FMVSS) 214 full-scale, side impact, crash testing. The two plastic glazing materials tested were an abrasion resistant (AR) coated copolymer of methyl methacrylate and N-methyl glutarimide (i.e., acrylic-imide or PMMI), and a polycarbonate (PC). Each of these window materials was evaluated in the driver's door of a Pontiac 6000 vehicle.
Technical Paper

The Effect of Airbag Suppression Systems on Durability and Safety-Related Testing Procedures

2005-04-11
2005-01-0744
Over the last several years, designers have been working toward developing airbag suppression systems in order to satisfy the new Federal Motor Vehicle Safety Standard (FMVSS) 208 - Occupant Crash Protection requirements currently being phased-in [1, 2]. By September 1, 2005, all vehicles are required to be in compliance with the new requirements. The new rule requires that vehicles must have an airbag suppression system that turns the airbag off in cases where a child or child seat is detected in the front passenger occupant position. Typically incorporated in the seating structure or cushion area, these suppression systems are activated each time the seat is occupied. More so than any other component, this feature makes safety, durability, and reliability testing of these systems critical to their functionality. This paper will discuss how airbag suppression systems have affected the standard testing procedures of vehicle components including seats and airbags.
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